package com.kkb.service.impl;

import com.kkb.bean.Grade;
import com.kkb.dao.GradeDao;
import com.kkb.dao.impl.GradeDaoImpl;
import com.kkb.service.GradeService;

import java.util.List;

/**
 * 班级service实现
 */
public class GradeServiceImpl implements GradeService {
    private GradeDao dao = new GradeDaoImpl();
    @Override
    public List<Grade> queryAll() {
        return dao.queryAll();
    }
}
